Is there has any method to train Tensorflow AI/ML that I focus on detecting background of image more than common objects?
Trying to address all the questions asked in the end in the same order


Most definitely possible.
I would say its best you approach this with segmentation to start with.
Just use a free GPU runtime notebook service such as Google Colab or Kaggle Kernels. But you would not directly be able to integrate with the device, you'd have to keep moving input and output from your drive (on Colab). There might be a better service for the needs described, but this is the best I know on this.
Your background can be segmented and the segment can work on transforms such as maybe convolutions or affine transforms to be able to get the relevant information regarding the background.


Hope this was helpful!